Vane-type fuel pump

Patent · Tue Jul 13 04:00:00 EDT 1993

OSTI ID:6138734

Martin, T B

A pump is described comprising: a pump housing including interior surfaces defining a pumping chamber having a diameccentric configuration including a perimeter section, a front wall, a rear wall, an intake port, a discharge port, an intake region, and a discharge region; a pump rotor disposed within and diameccentric to the pumping chamber for being rotated there within for pressurizing and pumping an incompressible fluid, the pumping chamber having a uniform diameter when measured through the longitudinal center of the rotor, the perimeter of the pumping chamber in the discharge region having a shape such that the incompressible fluid is discharged through the discharge port in a substantially uniform, non-pulsating flow; the pump rotor having a rotor face disposed substantially perpendicular to the axis of rotation of the rotor, and having surfaces defining a pair of intersecting, perpendicular channels having a bottom wall and two side walls, the intersecting, perpendicular channels intersecting at a center portion of the rotor face and extending on each end to the perimeter of the rotor face, the pump rotor being positioned axially within the pumping chamber so that the rotor face is aligned with the front wall of the pumping chamber; a pair of elongated vanes, one of the elongated vanes slidably disposed within each of the channels for reciprocation therein; a roller disposed within each elongated recess for sealing engagement with the pumping chamber when the rotor is rotated within the pumping chamber; and the housing and the vanes cooperatively defining four rotatable pumping chambers, each the pumping chamber for receiving a quantity of incompressible fluid as the pumping chamber is rotated into communication with the intake port, and each the pumping chamber defining a constant volume for confining the incompressible fluid until the pumping chamber is in communication with the discharge port.

• Assignee: IMS; EDB-93-105828
• Patent Number(s): US 5226803; A
• Application Number: PPN: US 7-733469
• OSTI ID: 6138734
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
AUTOMOTIVE ACCESSORIES
FLUID FLOW
FUEL SYSTEMS
INCOMPRESSIBLE FLOW
PUMPS
ROTORS
SEALS